# 4.4.2.2 Reserved Size Spatial separation and carton expansion is inevitable in actual loading operation. In order to ensure the designed loading scheme is feasible, it is necessary to reserve a certain size in advance to ensure that all the goods can be fully loaded on site. It is an empirical value to deduct how much in the container length, width and height. Uses can summarize how much should be deducted after using LoadMaster to guide the on-site loading. If you use a forklift to load the cabinet, it is recommended to set the following reserved dimensions when using LoadMater for the first time: 1. 20GP: reserved 5-8CM in length, 3-5CM in width, 10CM in height 2. 40GP/40HQ: reserved 10-15CM in length, 3-5CM in width, 10CM in height If it is manual loading and most of the packaging boxes are carton packaging. It is generally recommended to set the following reserved size: 1. 20GP: reserved 5-8CM in length, 3-5CM in width, 3-5CM in height 2. 40GP/40HQ: reserved 10-15CM in length, 3-5CM in width, 3-5CM in height --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc.loadmaster.biz/4-ui-and-terminologies/4.4-containers/4.4.2-attributes-of-the-containers/4.4.2.2-reserved-size.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.